Description: ath10k: fix memory leak
References:
 https://github.com/torvalds/linux/commit/b8d17e7d93d2beb89e4f34c59996376b8b544792
Notes:
 bwh> Introduced in 4.14 by commit 4db66499df91 "ath10k: add initial USB
 bwh> support".
Bugs:
upstream: released (5.5-rc1) [b8d17e7d93d2beb89e4f34c59996376b8b544792]
4.19-upstream-stable: released (4.19.96) [aed1b68eadf22513ac1fbd389f591f91c8bdaaf5]
4.9-upstream-stable: N/A "Vulnerable code not present"
3.16-upstream-stable: N/A "Vulnerable code not present"
sid: released (5.4.13-1)
4.19-buster-security: released (4.19.98-1)
4.9-stretch-security: N/A "Vulnerable code not present"
3.16-jessie-security: N/A "Vulnerable code not present"